Actor-Based Concurrent Language: Difference between revisions

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{{Short description|Family of programming languages}}

'''Actor-Based Concurrent Language''' ('''ABCL''') is a family of [[programming language]]s, developed in [[Japan]] in the 1980s and 1990s.

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ABCL/1 uses asynchronous [[message passing]] among [[object (programming)|objects]] to achieve concurrency. It requires [[Common Lisp]]. Implementations in [[Kyoto Common Lisp]] (KCL) and [[Symbolics]] Lisp are available from the author.

===ABCL/c+===

An implementation of ABCL/c+ is available from the ACM.<ref>[https://dl.acm.org/doi/10.5555/646148.679055 An Implementation of an Operating System Kernel Using Concurrent Object-Oriented Language ABCL/c+]</ref>

===ABCL/R===

''ABCL/R'' is an [[Object-oriented programming|object-oriented]] [[reflection (computer science)|reflective]] subset of ABCL/1, written by Professor Akinori Yonezawa of [[Tokyo Institute of Technology]] in 1988.

====ABCL/R2====

''ABCL/R2'' is a second generation version of ABCL/R, designed for the Hybrid Group Architecture. It was produced at the Tokyo Institute of Technology in 1992, and has almost all the functionality of ABCL/1. It is written in [[Common Lisp]]. As a reflective language, its programs can dynamically control their behavior, including scheduling policy, from within a user-process context.

===ABCL/c+=Further reading==

''ABCL/c+'' is an object-oriented concurrent language, a variant of ABCL/1 based on [[C (programming language)|C]] instead of [[Lisp (programming language)|Lisp]].

This language is often referred to as C+, but must not be mistaken for [[C (programming language)|C]] or [[C++]]. C+ was created by professor Akinori Yonezawa, winner of the [[Dahl-Nygaard Prize]] in 2008. The Dahl-Nygaard Prize is the world’s most prestigious prize in the field of object-orientation.

==References==

*''ABCL: An Object-Oriented Concurrent System'', A. Yonezawa ed, MIT Press 1990

*''Reflection in an Object-Oriented Concurrent Language'', T. Watanabe et al., SIGPLAN Notices 23(11):306-315 (Nov 1988)

*''An Implementation of An Operating System Kernel using Concurrent Object Oriented Language ABCL/c+'', N. Doi et al. in ECOOP '88, S. Gjessing et al. eds, LNCS 322, Springer 1988

*{{FOLDOC}}

==References==

{{reflist}}

==External links==

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[[Category:Prototype-based programming languages]]

[[Category:Concurrent programming languages]]

[[Category:Common Lisp (programming language) software]]

[[Category:Lisp programming language family]]

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